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 TM 55-1905-223-24-5
Table 2-2. Troubleshooting-CONT
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
STEP 7.
Check to see if fuel return line is restricted or fuel tank vents are plugged. Refer to
Malfunction 22, STEP 3.
STEP 8.
Check for fuel contamination. Drain and clean fuel tank. Replenish fuel.
STEP 9.
Check for air or exhaust leaks between turbocharger and engine. Refer to Malfunction
14, STEP 2.
STEP 10.
Check to see if fuel rate low, fuel pressure low, and turbocharger pressure low.
a.
Stop the engine.
b.
Remove the plug (FIGURE 2-10) from the spring pack cover.
FIGURE 2-10 Plug Removal.
c.
Install the fuel pump idle adjusting tool, P/N 3375981, in the plug hole.
d.
Operate the engine for 30 seconds at high idle to remove the air from the fuel system.
e.
Make sure the engine is at or above 160 (70 ).
F
C
f.
Adjust low idle speed between 650 and 725 rpm.
g.
Remove the fuel pump idle adjusting tool and install the plug.
h.
Operate the engine until the rpm is constant and all air is out of the fuel system.
i.
Recheck the idle speed.
STEP 11.
Fuel rate high, fuel pressure high, and turbocharger pressure high.
a.
Lower fuel rate.
b.
Refer to Malfunction 24, STEP 10.
STEP 12.
Check to see if fuel rate OK, fuel pressure high, and turbocharger pressure OK.
a.
Check for defective injector.
2-48
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